Grease gun



FIG. 1 is a perspective view of a grease gun showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a rear elevational view;

FIG. 5 is a front elevational view; and,

FIG. 6 is a right side elevational view thereof.

FIGS. 2-6 have been drawn on an enlarged scale with respect to FIG. 1.

The ornamental design for a grease gun, as shown and described. 

The ornamental design for grease gun, as shown and described. 